JPH0459101B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a fin insertion device for automatically inserting flexible fins into a corrugated tube.

Structure of conventional example and its problems Conventional fin insertion was performed manually, with an operator manually inserting the fins one by one between the tubes. In this method, flexible fins are difficult to handle, which increases the working time and has a large impact on production. In addition, burrs and the like were generated on the product of the fins, which had an adverse effect on the workers and caused operational problems. Further, when inserting the fins, the fins are only pressed from above and there are no guides on all sides, so the fins are easily damaged, causing product defects.

OBJECTS OF THE INVENTION The present invention solves the above-mentioned conventional drawbacks, and aims to improve productivity, quality, and cost by automatically inserting the fins while guiding them on all sides.

Structure of the Invention In order to achieve the above object, the fin insertion device of the present invention includes a jig plate that holds a tube having a meandering waveform shape in a plane, and a fin insertion device that enters a space formed by the meandering waveform shape of the tube. There is a distance between a pusher that pushes and expands the space, a fin guide that presses and holds the tube against the jig plate and serves as a guide for inserting a fin into the space, and the end of the pusher. A fin holder that enters the fin guide and pushes the fin into the tube while holding the fin at a constant value, and an upper slide unit that holds the fin holder and makes it movable in the vertical direction. It is.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, 1 is a jig plate that keeps the corrugated tube 2 flat, 3 is a fin guide that guides the flexible fin 4 when inserted into the tube 2, and 5 is a jig plate that keeps the fin 4 flat.
6 is a pusher that serves as a holder for the fin 4 when inserting it into the tube 2 to spread the tube 2; 6 is a fin presser that inserts the fin 4 into the tube 2 while sandwiching it;
7 is a reinforcing plate that receives the load when the tube 2 is pressed against the jig plate 1. To further explain this operation, FIG. 1A shows a state in which the tube 2 is held down by the fin guide 3. Figure 1B is the first
The process progresses from diagram A, and pusher 5 is replaced by tube 2.
The tube 2 is pushed out and the jig plate 1 is received by the reinforcing plate 7.
In FIG. 1C, the process has progressed from FIG. 1B, and the fin 4 is inserted and supported by the fin guide 3, and the fin presser 6 is in the upper position. FIG. 1D shows the state in which the fin 4 is being inserted into the tube 2 while being sandwiched between the pusher 5 and the fin presser 6, and the fin presser 6 and the pusher 5 are moved to the height of the fin 4 by the stopper 8 shown in FIG. A gap slightly larger than the dimensions is maintained, and the influence of the insertion force on the fins 4 is only the frictional force between the fins 4 and the tube 2. FIG. 1E shows a state in which the insertion of the fin 4 is completed, and after this step, the state returns to the state shown in FIG. 1A.

Next, in FIGS. 2 and 3, 9 is a fin presser holding plate that holds the fin presser 6, and 10 is a hydraulic cylinder that moves the fin presser holding plate 9 up and down while being guided by a guide post 12 via a slide shaft 11. , 13 is a hydraulic cylinder that moves the reinforcing plate 7 and pusher 5 up and down while being guided by a guide post 15 via a slide shaft 14, and 16 is a frame for the fin insertion device.

In FIG. 3, the fin presser holding plate 9 is moved by a hydraulic cylinder 10 in the direction of arrow b. Also, a fin presser holding plate 9, a hydraulic cylinder 10, a slide shaft 11, a guide post 12
The upper slide unit 17 carrying the is moved in the direction of arrow d by an air cylinder. The fin guide 3 is moved up and down by the air cylinder 18 in the direction of arrow e, and presses the tube 2. A lower slide unit consisting of a pusher 5 and a reinforcing plate 7 is moved in the direction of arrow a by a hydraulic cylinder 13.

FIG. 4 shows the state in which the fins 4 are inserted into the tube 2.

As described above, according to this embodiment, the flexible fins 4 are held in place by the fin presser 6 in the insertion direction of the fins 4.
Since the fins are inserted while being reliably guided by the pushers 5 and the fin guides 3 in the direction perpendicular to the insertion direction of the fins 4, there are no insertion errors and simultaneous insertion of multiple fins is possible, improving workability and reliability. It is possible to improve the performance and increase production volume.
Further, since the insertion pressure into the fins 4 is only the frictional force between the fins 4 and the tube 2, this is extremely advantageous in terms of quality.

Effects of the Invention As described above, according to the present invention, flexible fins are guided by a fin presser and a pusher in the fin insertion direction, and by a fin guide in a direction perpendicular to the fin insertion direction. Since the insertion pressure is generated only by the frictional force between the fins and the tube, it is possible to automate the insertion of the fins, which is extremely advantageous in terms of productivity, quality, reliability, and cost. be.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a process diagram showing the order of inserting the fins, FIG. 2 is a front view of the fin insertion device, FIG. 3 is a perspective view of the fin insertion device, and FIG. Figures A and B are a plan view and a front view showing the state in which the fins are inserted into the tube. 1... Jig plate, 2... Tube, 3...
Fin guide, 4... Fin, 5... Pusher, 6... Fin presser, 7... Reinforcement plate, 9
...Fin presser holding plate, 10, 13...Hydraulic cylinder, 17...Upper slide unit.

Claims (1)

[Claims] 1. A jig plate that holds a tube having a meandering waveform shape in a plane, a pusher that enters into a space formed by the meandering waveform shape of the tube and presses and expands the space, and a pusher that holds the tube with the jig plate. A fin guide that is pressed against and held by the pusher and serves as a guide for inserting the fin into the space, and a distance is kept constant between the end of the pusher and the fin is held while entering the fin guide. A fin insertion device comprising a fin presser for pushing the fin into the tube, and an upper slide unit for holding the fin presser and making it movable in the vertical direction.